Bonneville

Bonneville State Scenic Corridor protects a scenic section of the Columbia River Gorge along the Historic Columbia River Highway. The corridor preserves the natural and historic character of this famous route, offering travelers views of waterfalls, forests, and the dramatic basalt cliffs that define the gorge landscape.

The gorge's unique position between wet west-side and dry east-side environments creates diverse habitats. Black-tailed deer, black bears, and various small mammals inhabit the forests. American dippers bob in streams while ospreys and bald eagles patrol the river. The gorge is a major bird migration corridor.

The moist western gorge supports lush forest with Douglas fir, bigleaf maple, and western red cedar. Sword ferns, mosses, and wildflowers carpet the forest floor. The forest transitions to oak and pine on the drier eastern end. Spring wildflowers are spectacular.

The gorge was carved through the Cascade Range by the Columbia River over millions of years. Massive Columbia River Basalt lava flows created the dramatic cliffs. The Missoula Floods at the end of the ice age further sculpted the landscape, creating many of the waterfalls.

The corridor experiences a transitional climate. The western end is wet with 75+ inches of annual precipitation, while the east becomes progressively drier. Summers are warm but the gorge is famous for its strong winds. Winters are cool and wet in the west, cold and snowy in the east.

The Columbia River Gorge has been home to Chinookan peoples for thousands of years, with the river providing abundant salmon. Lewis and Clark passed through in 1805. The Historic Columbia River Highway was built in the 1910s as one of America's first scenic highways.

The scenic corridor was designated to protect the historic and natural character of the gorge along this famous route. Oregon State Parks manages the corridor within the broader Columbia River Gorge National Scenic Area framework. The designation helps preserve the heritage of early automobile tourism.

The Historic Columbia River Highway provides scenic driving with numerous waterfall viewpoints. Access to trails leading to Bonneville Falls and other attractions. The Bonneville Dam provides tours and fish viewing. The historic character of the highway itself is an attraction.

The corridor is a scenic drive without extensive facilities. Bonneville Dam has visitor facilities. Various state parks along the route offer camping and day-use areas. Accessible from Interstate 84 or the Historic Columbia River Highway.

The corridor protects scenic and natural values within the National Scenic Area. Historic preservation maintains the character of the original highway. Trail maintenance prevents erosion in sensitive areas. The designation balances recreational access with resource protection.